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A019247 Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VET = VPI-8 [ Si17O34 ]. 0
0, 0, 3, 5, 5, 27, 46, 95, 284, 696, 1475, 3944, 10194, 24962, 62913, 162871, 415963, 1069432, 2774893, 7228129, 18863793, 49560625, 130798904, 346253692, 920036094, 2454518563, 6566467540, 17614395090, 47376832674 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,3

REFERENCES

G. Thimm and W. E. Klee, Zeolite cycle sequences, Zeolites, 19, pp. 422-424, 1997.

LINKS

Table of n, a(n) for n=3..31.

G. Thimm, Cycle sequences of crystal structures

CROSSREFS

Sequence in context: A200771 A072624 A147976 * A165142 A231809 A186969

Adjacent sequences:  A019244 A019245 A019246 * A019248 A019249 A019250

KEYWORD

nonn,more

AUTHOR

Georg Thimm (mgeorg(AT)ntu.edu.sg)

EXTENSIONS

a(20)-a(31) from Sean A. Irvine, Apr 19 2019

STATUS

approved

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Last modified June 18 16:46 EDT 2019. Contains 324214 sequences. (Running on oeis4.)